Beginner Question on Rendering (with Raytracing) - Project imported from Twinmotion

Development Rendering
1

Hi

I have been using Twinmotion and came over to UE in order to have raytracing. Thus I have started with an ArchiVis project, enabled raytracing and used Datasmith to import the Twinmotion project.

There is a lot of “noise” in the images, that is also running around like ants. I have marked it out in a couple of screenshot, e.g. in the grass, the window blindes. Does anyone know what is causing this or how to get rid of this? There are so many settings, that I frankly don’t even know where to start.

indoor_ue
indoor_ue1920×1200 575 KB

noise_grass
noise_grass1119×704 1.59 MB

Then I have some textures that have a high contrast, that is also not there in Twinmotion. This can be seen in the wood of the wardrobe (left = UE, right = Twinmotion) Any ideas on what could be causing this.

texture_wood.PNG
texture_wood.PNG1920×700 320 KB

Thanks a lot for your input and support. I appreciate any idea.

2

Hi, have you built the scene yet?

or did you accidently change the scalability settings?

set to High or above level to get normal qualities.

image
image1107×662 193 KB

3

Hi

Thanks for the answer. I have everything on epic and built the scene. Although I have to say that the build always is quite quick.

However I think I found the main issues.
One was that I changed from Temporal AA to MSAA.

The other problem is raytracing noise, where I found a good video on youtube. it seems that i also have global illumination noise. if i increase the quality with more samples per pixel, some of the noise also goes away. however at a high cost in fps.

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